Getting the word out
Where Trackhop is listed or about to be: Obtainium’s app list, the apps pages of Navidrome and Jellyfin, awesome lists on GitHub (offa/android-foss, pcqpcq/open-source-android-apps, awesome-jellyfin), AlternativeTo (as an alternative to Soundiiz, TuneMyMusic and FreeYourMusic), IzzyOnDroid, and posts on r/fossdroid, r/androidapps, r/navidrome, r/jellyfin, Lemmy and Mastodon.